Technologies R-0009-C, Sulfuric Acid .12N Reagent, 2 Ounce, for Testing Total Alkalinity Levels in Pool and Spas, Dropper Refill for Water Test Kits, Replace Annually | Made in the USA

Our go to brand for pool testing chemicals. They never disappoint!

Great product

As expected

I use this to measure total alkalinity. I use the Taylor speed stirrer with it as well. My pool has never looked better and I routinely measure pH, chlorine, total alkalinity and CYA levels and this one works great for TA levels. One bottle 60ml (this size) lasts almost a year, so having an expiration date of at least a year is good. If I need to raise the Total Alkalinity, I just buy the 13.5 pound Baking Soda bag that can be resealed from the local cost co which is a lot less expensive than the various pails at the local pool store called pH up

I chose to buy a Taylor test kit with a range of tests, and buy refill reagents as needed. I do my own pool maintenance, and it's important to get accurate readings on what the water might need to keep it in balance. In my experience the tests are easy and accurate, much more convenient and cheaper than taking a water sample to a second party to test for me.

I use this product for my pool. The 2 ounce size is the real plus. Pool test kits come with 3/4 ounce. Expiration date was 7/24 which is another plus. Overall I will purchase from them again.

The best and accurate readings

Good